v3.9.1 Features
– Save PNG or JPG screenshots without FreeImage.dll (D3D).
– Fullscreen: new option to use the desktop refresh rate (D3D).

v3.9.1 Emulation improvements
– Delay before bus error triggers.
– Blitter: In blit mode, the blitter can interrupt an operation between read and write. The CPU can surrender bus control during an instruction. Steem emulates this, but it’s not 100% accurate.